X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fpawns.cpp;h=86c4b8ef2520eba9a1b64bf231ca93e5f2aadc16;hp=9755c2ec2e0e20258f046610797efb40a40c65e7;hb=d980d7c0d4b2efe7abe26bdd094859f6d888ee60;hpb=9d3a2ecaa22cb55bddef0e932f2b2951cf6cacf5

diff --git a/src/pawns.cpp b/src/pawns.cpp
index 9755c2ec..86c4b8ef 100644
--- a/src/pawns.cpp
+++ b/src/pawns.cpp
@@ -70,7 +70,7 @@ namespace {
     constexpr Color     Them = (Us == WHITE ? BLACK : WHITE);
     constexpr Direction Up   = (Us == WHITE ? NORTH : SOUTH);
 
-    Bitboard b, neighbours, stoppers, doubled, support, phalanx;
+    Bitboard neighbours, stoppers, doubled, support, phalanx;
     Bitboard lever, leverPush;
     Square s;
     bool opposed, backward, passed;
@@ -145,11 +145,10 @@ namespace {
             score -= Doubled;
     }
 
-    // Penalize the unsupported and non passed pawns attacked twice by the enemy
-    b =   ourPawns
-        & doubleAttackThem
-        & ~(e->pawnAttacks[Us] | e->passedPawns[Us]);
-    score -= WeakLever * popcount(b);
+    // Penalize our unsupported pawns attacked twice by enemy pawns
+    score -= WeakLever * popcount(  ourPawns
+                                  & doubleAttackThem
+                                  & ~e->pawnAttacks[Us]);
 
     return score;
   }